Alloy Formation and Strength of Ni-Cu Interaction in Ni-Cu/ZnO Catalysts |
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| Authors: | Yaquan Wang and Tingyuan Gao |
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| Affiliation: | (1) Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, 1525 Budapest, P.O. Box 49, Hungary;(2) Institute of Nuclear Research, Hungarian Academy of Sciences, 4001 Debrecen, P.O. Box 51, Hungary;(3) Research Institute for Technical Physics and Materials Science, Hungarian Academy of Sciences, 1525 Budapest, P.O. Box 49, Hungary;(4) Present address: Laboratoire de G?nie Electrique de Paris, Universit? Paris Sud, Orsay, France; |
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| Abstract: | A series of Ni-Cu/ZnO catalysts were prepared and studied by temperature-programmed reduction. The results show that after reduction a Ni-Cu alloy formed; the strength of Ni Cu interaction depends on the Ni-Cu ratios, the higher the Cu/Ni ratio, the stronger the Ni-Cu interaction. This phenomenon was attributed to the donation of electrons from the d band of Cu to that of Ni, increasing the bonding strength. |
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| Keywords: | Bimetallic catalyst Ni Cu TPR |
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